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Aquifer Characteristics Of Glacial Drift: Michigan michigan-state

2017. State of Michigan. This shape file was derived from the 1981 publication of the Hydrological Atlas of Michigan plate 26. Three plates of the Aquifer Characteristics o...

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Basins: Allegheny County, Pennsylvania penn-state

2002. Allegheny County Division of Computer Services Geographic Information Systems Group. 3 Rivers Wet Weather Demonstration Program Outreach Planning Basins.

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Estimated Groundwater Recharge: Michigan michigan-state

2017. State of Michigan. This data set provides an estimate of annual groundwater recharge for each public land survey section in Michigan.


Floodplain: Ann Arbor, Michigan, 2012 michigan

2012. That portion of the river valley, adjacent to the channel, which is built of sediments deposited during the present geological / climatic regime. B...

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Major Carbonate Aquifers: Ohio ohio-state

2017. The USGS National Hydrography Dataset (NHD) service from The National Map (TNM) is a comprehensive set of digital spatial data that encodes informa...


Metro Wetlands and Wet Areas (MMCD): Minnesota minnesota

2017. Metropolitan Mosquito Control District. This layer depicts wetlands and wet areas tracked by the Metropolitan Mosquito Control District (MMCD) as potentially holding water long enough to ...